Home / 70,145.73-105,232.32-25,772.85

Finding the Fourth Proportional to 70,145.73, 105,232.32 and 25,772.85

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Solution

The fourth proportional to 70,145.73, 105,232.32 and 25,772.85 is: 38,664.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,145.73 : 105,232.32 = 25,772.85 : x
  2. Step 2: Convert to fraction form
    70,145.73/105,232.32 = 25,772.85/x
  3. Step 3: Cross multiply
    70,145.73x = 105,232.32 × 25,772.85
  4. Step 4: Simplify right side
    70,145.73x = 2,712,136,798.51
  5. Step 5: Solve for x
    x = 2,712,136,798.51/70,145.73
  6. Step 6: Final answer
    x = 38,664.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.